/ ˈsɪəriəsli; NAmE ˈsɪr-/ adverb
1.
in a serious way :
to be seriously ill / injured
You're not seriously expecting me to believe that?
They are seriously concerned about security.
Smoking can seriously damage your health.
2.
used at the beginning of a sentence to show a change from joking to being more serious :
Seriously though, it could be really dangerous.
3.
( informal ) very; extremely :
They're seriously rich.
•
IDIOMS
- take sb/sth seriously